77 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Declarations for error reporting tracepoints.4 *5 * Copyright (C) 2021, Google LLC.6 */7#undef TRACE_SYSTEM8#define TRACE_SYSTEM error_report9 10#if !defined(_TRACE_ERROR_REPORT_H) || defined(TRACE_HEADER_MULTI_READ)11#define _TRACE_ERROR_REPORT_H12 13#include <linux/tracepoint.h>14 15#ifndef __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY16#define __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY17 18enum error_detector {19 ERROR_DETECTOR_KFENCE,20 ERROR_DETECTOR_KASAN,21 ERROR_DETECTOR_WARN,22};23 24#endif /* __ERROR_REPORT_DECLARE_TRACE_ENUMS_ONCE_ONLY */25 26#define error_detector_list \27 EM(ERROR_DETECTOR_KFENCE, "kfence") \28 EM(ERROR_DETECTOR_KASAN, "kasan") \29 EMe(ERROR_DETECTOR_WARN, "warning")30/* Always end the list with an EMe. */31 32#undef EM33#undef EMe34 35#define EM(a, b) TRACE_DEFINE_ENUM(a);36#define EMe(a, b) TRACE_DEFINE_ENUM(a);37 38error_detector_list39 40#undef EM41#undef EMe42 43#define EM(a, b) { a, b },44#define EMe(a, b) { a, b }45 46#define show_error_detector_list(val) \47 __print_symbolic(val, error_detector_list)48 49DECLARE_EVENT_CLASS(error_report_template,50 TP_PROTO(enum error_detector error_detector, unsigned long id),51 TP_ARGS(error_detector, id),52 TP_STRUCT__entry(__field(enum error_detector, error_detector)53 __field(unsigned long, id)),54 TP_fast_assign(__entry->error_detector = error_detector;55 __entry->id = id;),56 TP_printk("[%s] %lx",57 show_error_detector_list(__entry->error_detector),58 __entry->id));59 60/**61 * error_report_end - called after printing the error report62 * @error_detector: short string describing the error detection tool63 * @id: pseudo-unique descriptor identifying the report64 * (e.g. the memory access address)65 *66 * This event occurs right after a debugging tool finishes printing the error67 * report.68 */69DEFINE_EVENT(error_report_template, error_report_end,70 TP_PROTO(enum error_detector error_detector, unsigned long id),71 TP_ARGS(error_detector, id));72 73#endif /* _TRACE_ERROR_REPORT_H */74 75/* This part must be outside protection */76#include <trace/define_trace.h>77